S-8204BAR-TCT1U Equivalent & Substitute Parts

Part Overview

The S-8204BAR-TCT1U is a Battery Protection IC for Lithium Ion applications, manufactured by ABLIC Inc. This device provides over-current and short-circuit protection for 3-4 cell lithium ion battery packs in a 16-TSSOP surface mount package. The main part is classified as "Not For New Designs," making identification of active equivalent alternatives essential for ongoing production and new design initiatives.

Key Parameters

Parameter	Value
Manufacturer	ABLIC Inc.
Category	Power Management (PMIC)
Function	Battery Protection
Battery Chemistry	Lithium Ion
Number of Cells	3 ~ 4
Fault Protection	Over Current, Short Circuit
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the S-8204BAR-TCT1U is determined by strict parametric equivalence across the following criteria:

Battery Chemistry: Lithium Ion
Number of Cells: 3 ~ 4
Fault Protection: Over Current, Short Circuit
Package / Case: 16-TSSOP (0.173", 4.40mm Width)
Operating Temperature Range: -40°C ~ 85°C (TA)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts listed maintain identical electrical and mechanical specifications. Substitutes are grouped by product status: Active parts are preferred for new designs, while "Not For New Designs" parts are suitable only for legacy system support or inventory management.

Parameter Comparison

Part Number	Manufacturer	Product Status	Battery Chemistry	Cells	Fault Protection	Package	Operating Temp	RoHS	Inventory (Pcs)
S-8204BAR-TCT1U	ABLIC Inc.	Not For New Designs	Lithium Ion	3 ~ 4	Over Current, Short Circuit	16-TSSOP	-40°C ~ 85°C	ROHS3	1070
S-8204AAB-TCT1U	ABLIC Inc.	Active	Lithium Ion	3 ~ 4	Over Current, Short Circuit	16-TSSOP	-40°C ~ 85°C	ROHS3	703
S-8204AAC-TCT1U	ABLIC Inc.	Active	Lithium Ion	3 ~ 4	Over Current, Short Circuit	16-TSSOP	-40°C ~ 85°C	ROHS3	930
S-8204AAD-TCT1U	ABLIC Inc.	Active	Lithium Ion	3 ~ 4	Over Current, Short Circuit	16-TSSOP	-40°C ~ 85°C	ROHS3	1058
S-8204AAE-TCT1U	ABLIC Inc.	Active	Lithium Ion	3 ~ 4	Over Current, Short Circuit	16-TSSOP	-40°C ~ 85°C	ROHS3	657
S-8204AAJ-TCT1U	ABLIC Inc.	Active	Lithium Ion	3 ~ 4	Over Current, Short Circuit	16-TSSOP	-40°C ~ 85°C	ROHS3	1139
S-8204AAK-TCT1U	ABLIC Inc.	Active	Lithium Ion	3 ~ 4	Over Current, Short Circuit	16-TSSOP	-40°C ~ 85°C	ROHS3	1050
S-8204AAL-TCT1U	ABLIC Inc.	Not For New Designs	Lithium Ion	3 ~ 4	Over Current, Short Circuit	16-TSSOP	-40°C ~ 85°C	ROHS3	4940
S-8204AAM-TCT1U	ABLIC Inc.	Active	Lithium Ion	3 ~ 4	Over Current, Short Circuit	16-TSSOP	-40°C ~ 85°C	ROHS3	881
S-8204AAN-TCT1U	ABLIC Inc.	Active	Lithium Ion	3 ~ 4	Over Current, Short Circuit	16-TSSOP	-40°C ~ 85°C	ROHS3	1064
S-8204AAO-TCT1U	ABLIC Inc.	Active	Lithium Ion	3 ~ 4	Over Current, Short Circuit	16-TSSOP	-40°C ~ 85°C	ROHS3	878

Engineering Selection Recommendations

For new design implementations, select from the Active product status variants: S-8204AAB-TCT1U, S-8204AAC-TCT1U, S-8204AAD-TCT1U, S-8204AAE-TCT1U, S-8204AAJ-TCT1U, S-8204AAK-TCT1U, S-8204AAM-TCT1U, S-8204AAN-TCT1U, or S-8204AAO-TCT1U. These parts maintain full ROHS3 compliance and unlimited moisture sensitivity rating, ensuring long-term supply chain stability and regulatory adherence.

The S-8204AAL-TCT1U is classified as "Not For New Designs" and should be reserved for legacy system maintenance or replacement applications only. The main part S-8204BAR-TCT1U carries the same restriction and should be phased out in favor of active alternatives.

All substitute parts are manufactured by ABLIC Inc. and share identical electrical protection characteristics, operating temperature ranges, and package specifications, enabling direct functional replacement without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can S-8204AAB-TCT1U replace S-8204BAR-TCT1U in existing designs?

A: Yes. Both parts are parametrically equivalent across all critical specifications: battery chemistry, cell count, fault protection type, package geometry, operating temperature range, and compliance certifications. Direct substitution is electrically and mechanically compatible.

Q: Why is S-8204BAR-TCT1U marked "Not For New Designs"?

A: This designation indicates the part is in end-of-life phase. ABLIC Inc. recommends transitioning to active alternatives for new product development. Existing inventory remains available for legacy system support.

Q: What is the difference between the various S-8204 variants?

A: All listed variants share identical electrical and mechanical parameters for lithium ion battery protection in 3-4 cell configurations. Differences are internal to the device and do not affect substitution eligibility based on the provided specifications.

Q: Is the 16-TSSOP package consistent across all substitutes?

A: Yes. All substitute parts use the 16-TSSOP (0.173", 4.40mm Width) surface mount package. PCB layout and footprint compatibility is maintained across all variants.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed parts, including the main part and all substitutes, carry ROHS3 compliance certification. Moisture sensitivity level is uniformly rated at MSL 1 (Unlimited) across the entire family.

Q: Which substitute has the highest current inventory?

A: S-8204AAL-TCT1U has the highest inventory at 4,940 pieces. However, this part is marked "Not For New Designs." Among Active parts, S-8204AAJ-TCT1U has the highest inventory at 1,139 pieces.

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